Matter is anything that takes up space and has mass.

Smallest unit of a chemical element

Only one kind of atom

Chemicals that exist in the universe

Two or more atoms put together

Two or more DIFFERENT atoms are joined together

They tell you how many "atoms" of each element

To multiply the number of molecules you are making.

Through the air contaminated objects

Passed from one to another

Disrupts normal body functions

Disease that can not be spreadable

Fights off germs

An organism that you need a microscope to see with

Single cell organism that can make you sick

A particle that invades a cell and destroys it

To prevent more diseases

A medicine that kills bad germs that get into your body

Fights off germs that invade your system

Biological system consisting of specific organs and structures

Brings in oxygen and breathes out carbon dioxide

Increases the volume in the thorax and so inflates the lungs

Delivers oxygen to the body

A organ system that permits blood to circulate and transport nutrients to and from your cells